Natural Disaster Risk in Glencross

Natural Hazard Profile: Glencross, South Dakota

Glencross is a small unincorporated community in Dewey County, in the northern tier of the continental United States. The area experiences harsh winters, hot summers, and significant seasonal variation, with severe blizzards and spring flooding shaping the pattern of natural hazards that residents encounter. Understanding the local risk profile is essential for anyone living in, moving to, or owning property in Glencross.

According to FEMA's National Risk Index, Glencross carries an overall risk score of 5.0/10, placing it in the moderate category. Extreme cold snaps top the local risk profile, with Arctic front passages causing rapid and severe temperature drops that challenge both infrastructure and outdoor safety. The area also faces notable exposure to winter and wildfire.

Glencross's risk score, near the 4.9/10 state average and near the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Dewey County, the highest-scoring are cold wave, winter, and wildfire. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

With a moderate risk rating, Glencross residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for cold wave is recommended.